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CN-121989451-A - Light source assembly, manufacturing method thereof, 3D printing device, exposure control method and medium

CN121989451ACN 121989451 ACN121989451 ACN 121989451ACN-121989451-A

Abstract

The application provides a light source assembly and a manufacturing method thereof, 3D printing equipment, an exposure control method and a medium, and relates to the technical field of 3D printing. The light source assembly is applied to 3D printing equipment and comprises at least one light emitting piece, wherein the light emitting piece comprises at least two light emitting rows, the at least two light emitting rows are arranged along a first direction, the adjacent two light emitting rows are not on the same straight line, and the first direction is perpendicular to the moving direction of the light source assembly during printing. According to the embodiment of the application, two adjacent light emitting rows in the light emitting piece are staggered instead of being spliced to obtain the long linear light source, so that the problem of poor printing effect caused by the fact that a splicing gap cannot meet the splicing precision requirement is avoided, the limit on the edge size between the single light emitting rows is reduced, and the printing fineness is improved.

Inventors

  • Deng xinqiao

Assignees

  • 深圳市纵维立方科技有限公司

Dates

Publication Date
20260508
Application Date
20250211
Priority Date
20241108

Claims (11)

  1. 1. A light source assembly for use in a 3D printing apparatus, the light source assembly comprising: At least one light emitting member, the light emitting member comprising: at least two luminous rows, at least two luminous rows are arranged along a first direction, and two adjacent luminous rows are not on the same straight line, wherein the first direction is perpendicular to the moving direction of the light source assembly during printing.
  2. 2. The light source assembly of claim 1 wherein the light source assembly comprises, Each light emitting row comprises at least one light emitting unit; The number of the light emitting units included in different light emitting rows in the light emitting piece is the same or different; the number of light emitting rows is n, and when n is greater than or equal to 3, N of the light emitting rows are alternately arranged back and forth in the moving direction of the light source assembly, or The n light emitting rows are arranged in a stepwise manner in the moving direction of the light source assembly.
  3. 3. The light source assembly of claim 1 wherein the light source assembly comprises, The projections of two adjacent light emitting rows in the first direction are not overlapped, or The projection parts of two adjacent light emitting rows in the first direction are overlapped; And if the projection parts of the two adjacent light-emitting rows in the first direction are overlapped, the overlapping amount of the projections of the two adjacent light-emitting rows in the first direction is a preset number of light-emitting units, and the preset number is more than 0 and less than 2.
  4. 4. A light source assembly as recited in claim 3, wherein each of said light emitting rows comprises a light emitting unit, and wherein projections of said adjacent two of said light emitting rows in said first direction overlap by an amount greater than 0 and less than 1.
  5. 5. The light source assembly of claim 1 wherein the light source assembly comprises, When the number of the at least one luminous piece is more than or equal to 2, at least two luminous pieces are arranged along the moving direction of the light source assembly; the distance between two adjacent luminous elements is more than 20 micrometers and less than 5 millimeters; In the same luminous piece, the distance between two adjacent luminous rows in the moving direction of the light source component is more than 20 micrometers and less than 5 millimeters; In the different light emitting pieces, the number of light emitting units included in the light emitting rows corresponding to the positions in the moving direction is the same or different; In different luminous elements, the luminous units included in the luminous rows corresponding to the positions are aligned, or In the different luminous elements, the projection parts of the luminous units included in the luminous rows corresponding to the positions in the first direction are overlapped, and the overlapping amount is the same as the overlapping amount of two adjacent luminous rows in the same luminous element in the moving direction; For any one of the first light emitting elements, a second light emitting element adjacent to the first light emitting element, and a third light emitting element adjacent to the first light emitting element, wherein the second light emitting element and the third light emitting element are on the same straight line; and for any one of the first light emitting elements, a second light emitting element adjacent to the first light emitting element, and a fourth light emitting element adjacent to the first light emitting element, wherein the first light emitting element and the fourth light emitting element are on the same straight line, and the fourth light emitting element corresponds to the second light emitting element in position in the moving direction.
  6. 6. A 3D printing apparatus, comprising: a light source assembly as claimed in any one of claims 1 to 5.
  7. 7. An exposure control method, characterized by being applied to a 3D printing apparatus including the light source assembly according to any one of claims 1 to 5, the method comprising: controlling the light source assembly to be opposite to the area to be solidified and performing scanning movement; And in the scanning movement process, when the light emitting element of the light source assembly is opposite to the target area of the area to be cured, controlling at least part of light emitting units in the light emitting element to emit light so as to irradiate the target area.
  8. 8. The method of claim 7, wherein the method further comprises: when the projection parts of two adjacent light-emitting rows of the light-emitting piece in the first direction are overlapped, controlling at least part of light-emitting units overlapped in one light-emitting row to emit light, and at least part of light-emitting units overlapped in the other light-emitting row to emit no light; The controlling of at least part of the light emitting units overlapped in one light emitting row to emit light and at least part of the light emitting units overlapped in the other light emitting row to emit no light in two adjacent light emitting rows includes: controlling the light-emitting units which are completely overlapped in one light-emitting row to emit light, the light-emitting units which are completely overlapped in the other light-emitting row to emit no light, and the light-emitting units which are not completely overlapped in the two light-emitting rows to emit light; The area of the completely overlapped light-emitting units in the overlapped range is larger than or equal to a first preset percentage, and the area of the incompletely overlapped light-emitting units in the overlapped range is smaller than the first preset percentage; The light source assembly comprises at least two light emitting parts, and when the light emitting parts of the light source assembly are opposite to a target area of the area to be solidified in the scanning movement process, at least part of light emitting units in the light emitting parts are controlled to emit light so as to irradiate the target area, and the light source assembly comprises: At a first moment in the process of scanning movement of the light source assembly, at least part of light emitting units in a first light emitting part emit light to irradiate a first target area of the area to be solidified; Wherein the area of the intersection region of the first target region and the second target region is greater than zero and less than the area of the union region of the first target region and the second target region; at a first moment in the process of scanning movement of the light source assembly, at least part of light emitting units in a first light emitting piece emit light to irradiate a first target area of the area to be solidified, and the first target area comprises: at the first moment, controlling all light emitting units corresponding to the to-be-cured area in the first light emitting piece to emit light so as to irradiate a first target area of the to-be-cured area; At a second moment in the process of scanning movement of the light source assembly, at least part of light emitting units in a second light emitting piece emit light to irradiate a second target area of the area to be solidified, and the method comprises the following steps: At the second moment, controlling all light-emitting units corresponding to the to-be-cured area in the second light-emitting piece to emit light, or controlling light-emitting units, close to the edge, corresponding to the to-be-cured area in the second light-emitting piece to emit light so as to irradiate a second target area of the to-be-cured area; the light emitting unit near the edge position comprises a target light emitting unit at the edge position of the area to be cured, or the light emitting unit near the edge position comprises a target light emitting unit at the edge position of the area to be cured and a light emitting unit adjacent to or spaced from the target light emitting unit.
  9. 9. A 3D printing apparatus comprising a processor and a memory storing a program or instructions that, when executed by the processor, implement the steps of the exposure control method according to any one of claims 7 to 8.
  10. 10. A readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of the exposure control method according to any one of claims 7 to 8.
  11. 11. A method of manufacturing a light source assembly, wherein the method is for manufacturing a light source assembly as claimed in any one of claims 1 to 5, the method comprising: Providing a substrate; The light emitting element comprises at least two light emitting rows, wherein the at least two light emitting rows are arranged along a first direction, the adjacent two light emitting rows are not on the same straight line, and the first direction is perpendicular to the moving direction of the light source assembly during printing; And packaging the substrate and at least one light emitting piece to obtain the light source assembly.

Description

Light source assembly, manufacturing method thereof, 3D printing device, exposure control method and medium Technical Field The application relates to the technical field of 3D printing, in particular to a light source assembly, a related device and a related method thereof, and particularly relates to a light source assembly, an exposure control method, 3D printing equipment, a readable storage medium and a manufacturing method of the light source assembly. Background Currently, light sources manufactured by chips, such as micro led linear light sources, are limited by the size of the wafer and cannot be long, so that it is necessary to splice a plurality of chips into a long linear light source, for example, as shown in fig. 1. The pixel size for photo-curing 3D printing is between 5-100um, and the required splicing accuracy is high. When a plurality of chips are spliced, physical interference can occur in the splicing between two adjacent chips, so that the splicing gap in the linear light source obtained by splicing, namely the edge size of each chip, cannot meet the requirements of splicing precision, and the printing effect around the splicing position is poor. Disclosure of Invention In view of the above, the present application provides a light source assembly, and related apparatus and method, and in particular provides a light source assembly, an exposure control method, a 3D printing device, a readable storage medium, and a manufacturing method of the light source assembly, which solve the problem that when a plurality of chips are spliced in the related art, the printing effect around the splicing position is poor due to the splicing gap. In a first aspect, an embodiment of the present application provides a light source assembly applied to a 3D printing apparatus, the light source assembly including: At least one light emitting member, the light emitting member comprising: at least two luminous rows, at least two luminous rows are arranged along a first direction, and two adjacent luminous rows are not on the same straight line, wherein the first direction is perpendicular to the moving direction of the light source assembly during printing. In a second aspect, embodiments of the present application provide a 3D printing apparatus comprising a light source assembly as in the first aspect. In a third aspect, an embodiment of the present application provides an exposure control method applied to a 3D printing apparatus, where the 3D printing apparatus includes a light source assembly as in the first aspect, the method including: controlling the light source assembly to be opposite to the area to be solidified and performing scanning movement; And in the scanning movement process, when the light emitting element of the light source assembly is opposite to the target area of the area to be cured, controlling at least part of light emitting units in the light emitting element to emit light so as to irradiate the target area. In a fourth aspect, embodiments of the present application provide a 3D printing device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method as in the first aspect. In a fifth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method as in the first aspect. In a sixth aspect, embodiments of the present application provide a method for manufacturing a light source module according to the first aspect, the method including: Providing a substrate; The light emitting element comprises at least two light emitting rows, wherein the at least two light emitting rows are arranged along a first direction, the adjacent two light emitting rows are not on the same straight line, and the first direction is perpendicular to the moving direction of the light source assembly during printing; And packaging the substrate and at least one light emitting piece to obtain the light source assembly. In an embodiment of the application, the light source assembly comprises at least one light emitting member, each light emitting member comprising at least two light emitting rows. For any one light emitting member, at least two light emitting rows are arranged along the first direction, and adjacent two light emitting rows are not on the same straight line, that is, the adjacent two light emitting rows are staggered from each other in the first direction. According to the embodiment of the application, two adjacent light emitting rows in the light emitting piece are staggered instead of being spliced to obtain the long linear light source, so that the problem of poor printing effect caused by the fact that a splicing gap cannot meet the splicing precision requirement is avoided, the limit on the edge size between the single light emitting rows is reduced,